Recommendations for the best 2 stroke oil. Analysis of the best gas to oil ratio you should use to improve performance. The benefits of using. Verkkothere are four components to your electric wiring: The magneto, the cdi, kill switch, and the spark plug. The spark plug, magneto, and kill switch are already installed, so. Regularly check and clean the spark plug. Replace it if it shows signs of wear or damage. Chain and sprocket care. Verkkowhen we tune a bicycle motor, most 80cc and 100cc engines begin to vibrate destructively at around 4,500 rpm. There are a number of straightforward concepts. Ensure you have the proper plug and check the spark gap to factory. Verkkohere's the easy way. Start with plug #4 and work your way towards the left of the bike. First you pull the boot off. For plug 4, just pull it up and towards. Verkkoready to start really burning rubber? Verkkoin this spark plug guide, we cover everything from part number charts to showing you which spark plug you need for your particular model, whether that be a standard.